不同预处理条件对羊毛机械开松损伤的影响  

Effects of different pretreatment conditions on the tensile properties of wool yarn

作　　者：邓通 黄鑫鑫 陈鹏[3] 沈兰萍 王瑄[4] DENG Tong;HUANG Xinxin;CHEN Peng;SHEN Lanping;WANG Xuan(School of Art and Design,Guangdong University of Technology,Guangzhou,Guangdong 510006,China;College of Textile Science and Engineering,Xi′an Polytechnic University,Xi′an,Shaanxi 710048,China;Ningbo Institute of Materials Technology and Engineering,Chinese Academy of Sciences,Ningbo,Zhejiang 315211,China;Zhejiang Fashion Institute of Technology,Ningbo,Zhejiang 315211,China)

机构地区：[1]广东工业大学艺术与设计学院,广东广州510006 [2]西安工程大学纺织科学与工程学院,陕西西安710048 [3]中国科学院宁波材料技术与工程研究所,浙江宁波315211 [4]浙江纺织服装职业技术学院,浙江宁波315211

出　　处：《毛纺科技》2023年第7期20-24,共5页Wool Textile Journal

基　　金：广东省自然科学基金面上项目(2022A1515011510);广东省哲学社会科学规划一般项目(GD21CYS02)。

摘　　要：为了最大程度降低废旧羊毛织物的纤维在机械开松过程中受到损伤,对不同油剂占比、温度、回潮率等预处理条件下羊毛纱线的拉伸断裂性能进行测试,并通过扫描电镜观察预处理和未进行预处理开松的纤维形貌,以分析纤维在开松过程中表面受到的损伤程度。结果表明:最优的预处理条件为油剂占比15%~25%,环境温度0~20℃,纱线回潮率80%~90%下放置24 h。与未预处理羊毛织物开松得到的纤维相比,预处理羊毛织物后进行机械开松得到的羊毛纤维平均长度、断裂强度和断裂伸长率分别增加10.2%、3.0%、10.1%,纤维短毛率降低15.6%,羊毛纤维主体损伤降低。In order to minimize the damage to fibers of waste wool fabrics during mechanical opening,the breaking tenacity of wool yarns was tested under different pre-treatment conditions such as oil ratio,temperature,and moisture regain.The morphology of the fibers after opening was observed by SEM,and the degree of surface damage to the fibers after the opening process was analyzed.The results show that the optimal pre-treatment conditions are 15%-25%oil agent,0-20℃ambient temperature,and 80%-90%yarn moisture regain for 24hous.Compared with the fibers obtained from untreated wool fabrics after opening,the average length,breaking tenacity,and breaking elongation of wool fibers obtained from mechanical opening increase by 10.2%,3.0%,and 10.1%,respectively.The rate of short fibers decreases by 15.6%,and the main body damage of wool fibers decreases.

关 键 词：废旧羊毛 拉伸性能 机械开松 预处理 

分 类 号：TS139[轻工技术与工程—纺织材料与纺织品设计]